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Priority to JP1988125818UpriorityCriticalpatent/JPH0717594Y2/ja
Priority to US07/304,658prioritypatent/US4892348A/en
Priority to DE3909277Aprioritypatent/DE3909277A1/de
Publication of JPH0245857UpublicationCriticalpatent/JPH0245857U/ja
Application grantedgrantedCritical
Publication of JPH0717594Y2publicationCriticalpatent/JPH0717594Y2/ja